Hi I saw some apistogramma's for sale at LFS and thought they were nice looking, I didn't get any names of them. I have a 120 gallon long with 6 parkinsoni rainbows, 5 neon dwarf rainbows, 2 blue paradise, 2 black paradise and 3 cory cats. How many would you suggest will be a good amount, don't care about breeding but if it happens that's a plus. Thanks